Improvement in elevator-towers



3SheetsSheet1.- L. B. SAWYER.

' ELEVATOR TOWER. Na. 181,283., Patented Aug.22,1876.

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STATES PATENT OFFICE.

LEMUEL B. SAWYER, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO SAWYER IMPROVED OBSERVATORY COMPANY, OF SAME PLACE.

IMPROVEMENT IN ELEVATOR-TOWERS.

Specification forming part of Letters Patent No. 181,283, dated August 22, 1876; application filed July 19, 1876. v

about equidistant from each other about'a common center, andtied together at suitable intervals by horizontal beams, in combination with an elevator-car, located between said tubular columns and adapted to be moved from the bottom to the top of said tubes, or vice versa, upon guides attached to the exterior of said tubes, as will be described.

My invention further consists in a peculiar arrangement of the timbers which support the upper floor, which will be more clearly explained in connection with the description of the drawings. I

My invention further consists in the use, in combination with a series of tubular columns, disposed as before described, and an arrangement of timbers or beams supported entirely -by said tubular columns, and upon which is erected the upper inclosure, of one or more rods, chains, or wire ropes, dependingfrom the timbers of said upper fioor, and supporting portions of the gallery or galleries, which cannot be readily'supported directly from the tubular columns by means of rigid braces.

My invention further consists in the use, in combination with a series of tubular columns, disposed as above described, the upper floortimbers supported thereby, and a gallery, certain portions of which are supported from said upperfioor-timbers by HIBHJIVS of rods, chains, or wire ropes, of guy-ropes, rods, or chains, extending from said gallery at points near the points of suspension to the ground and suitably anchored, as an additional means of stability to the structure.

Figure 1 is a side elevation of a lookouttower illustrating my invention. Fig.2 is an elevation of the same, looking at right angles to Fig. 1. Fig. 3 is a central longitudinal vertical section; Fig. 4 is a central transverse vertical section. Fig. 5 is a partial vertical section on line 00 won Fig. 6. Fig. 6 is a plan of the upper floor-timbers with the floor and upper inclosure removed, and Fig. 7 is a horizontal section on line 2 2 on Fig. 1.

A and B are two hollow or tubular shafts, made, preferably, of boiler -plate iron, and placed in a perpendicular position, and firmly secured upon a suitable framing, to admit of the hoistingdrums C and C being placed below their lower ends, as shown in Figs. 1, 2, 3, 4, and 7. D and D are two more tubular columns, of less diameter, constructed of the same material, and each placed in a perpendicular position, at apoint equidistant from the columns A and B, but upon opposite sides thereof, as shown in Figs. 6 and 7. These tubular columns are all connected together at suitable intervals by the horizontal tie-beams E E, bolted firmly to their outer sides, as shown in Fig. 7. F is a heavy beam of I-shaped' angle-iron, extending across the tops of the tubular columns A and B, and some distance beyond their outer sides, as shown, and firmly secured thereto. G'Gr are two beams having their inner ends forked and secured to the beams F, and extending therefrom at right angles across the tops of the tubular columns Band D, and some distance beyond the same, as shown. H H H H are four beams, the inner ends of which are firmly secured to the beams Gr G, and resting at a a on the tie-beams E E. lhe outer ends of the beams F, G, and H are tied together by the beams or ties I I. Upon these beams the floor J is laid, and the superstructure of the upper inclosnre K is built. Lis a gallery-floor, resting upon the beams M, radiating from the columns, and resting at their outer ends upon the diagonal braces b b, and on the beams N, secured at their inner ends to the tie-beams E, and supported at their outer ends from the beams H H directly above them by means of the rods 0 0, depending from the beams H H, and provided with turn-buckles c c, to regulate the length of the rod to bring the floor of the gallery to its proper level. 0 O are guy-rods extending from the beams N of the gallery to the ground, andsecurcly anchored to a suitable foundation provided therefor, and also provided with turn-buckles d d for straining them taut. P P are two elevator-cars, located upon opposite sides of the columns A and B, and each between said columns and one of the columns D or D, and fittedtomove up and down on guide-bars 2:6 .3, attached to the exterior of the columns A, B, D, and D, as shown in Fig. 7. The cars P P are suspended by the ropes f f, which pass over sheaves or pulleys g g, having their bearings on the forked beams G G, and the other ends of the ropes ff are each secured to the periphery of one .of the drums O or 0, the revolution of which, by the application of any suitable power, will cause umns, and adapted to be moved up and down upon guide-bars formed upon or securedto the exterior of said columns, substantially. as described.

2. The combination of the beams F, G, H, and E, tie-beams I, andtubular columns A,

B, D, and D, all arranged and adapted to support thefloor J and upper inclosure K, substantially as described.

3. The combination, with a series of tubular columns supporting the floor J and inclosure K, of the gallery L and rods, chains, or wire ropes c 0, depending from the floor J, and

adapted toisupport portions of the gallery, as

and for the purposes described.

4. The combination of a series of tubular columns, supporting at their tops a floor and inclosure, a gallery surrounding said columns,

portions of whichare supported by rods,

chaius,'or wire ropesc-c from saldupper floor,

and guyq'ods, chains, or ropes leading from i said gallery to theiground,as and for the purposes described.

. "Executed at Boston,Massachusetts, this2d day of May, 1876.

,L..B. SAWYER. Witnesses:

N. 0. LormARD,

A. HEMMENWAY. 

